Updated If you're looking for a portable air conditioners without a hose or window exhaust, then what you want is an evaporative air cooler (also called a swamp cooler or wet air cooler) which is basically a device that cools the air by evaporating water. Here are some good ones. These require water and with some units, you can even add in ice in order to cool the air down even faster. It works by sucking in the warm air in the room and cooling it down before blowing it back out. This results in a temperature drop.These air coolers won't cool your room down as much as regular air conditioners so if your home/room gets really hot, it's best to get a regular AC unit. The good thing about the air coolers is that it uses less electricity than ACs since they don't use energy hogging components like compressors. This means you get to save money because as you probably already know, traditional ACs can run the electricity bill up by a lot.There are a lot of evaporative air coolers to choose from varying in strength and coverage in terms of how much square feet of the room it will cool down, how much water it can hold, and other options like varies speeds.

These can be used indoor or outdoor and have caster wheels under them for easy portability.top 10 central ac brandsThere are different models for different room sizes such as the one pictured below, made for medium to large sized rooms.how old is my ac unitI'd say if you're looking for something that will cool your room down more than a fan would but not take up so much energy or require you to stick part of the unit outside or run a hose outside, then an evaporative air cooler is the way to go.how much does an ac unit cost to runLearn more about evaporative air coolersManufacturer of pictured item: HoneywellWritten There are no ventless air conditioning units currently available, but there is an alternative called an Evaporative Air Cooler.

These units cool the air by evaporating moisture through a material that is kept wet by being partially immersed in a tank of water within the unit.A fan blows air through the material, evaporating the moisture, and creating cold air that can reduces the temperature in the room. Because there is no refrigeration process, there is no exhaust air, and therefore, no vent is needed.It also uses less power than an AC unit, so you could save some money on your electricity bill in the long run.This Honeywell model is pretty solid. Written So far as I know there is no such thing as a portable or room sized air conditioner that works without exhausting the heat removed from room air to some outside space, usually the great outdoors. There are larger units, commercial units, non portable, that can dump excess heat into water in a tank or other reservoir, with the water eventually being replaced with cold water via plumbing.So called swamp coolers or evaporation coolers are NOT AIR CONDITIONERS.BUT they do work rather well IF the humidity of the ambient air is LOW.

They work GREAT in a low humidity desert environment for instance. But the savings on electricity are partially offset by the use of lots of clean fresh water, which can be pretty expensive in a desert environment.They are basically just about entirely worthless on a hot MUGGY high humidity day.I live in a place where hot days are usually also quite humid, and know maybe half a dozen people who have given evaporative coolers a try. All of them took them back to the store for a refund.The reason they won’t work on a humid day is that water will not evaporate very well or quickly into air that is already loaded with moisture.DO NOT BUY A SWAMP COOLER EXPECTING IT TO WORK IN A HUMID CLIMATE.Maybe it’s the Southerner in me, but aren’t window air conditioner units supposed to be ugly and downright evil? You’re upending my world, Noria. The point of a window AC is the battle to get the damn thing installed. The struggle is part of the journey through hell. It’s supposed to sound like a 757 is idling next to your bedroom.

Based in Philadelphia, Noria Home is taking on a market that has seen little innovation in 60 years. The window mounted – I use the term loosely for some of you – air conditioner. Noria is addressing every gripe we have about a window AC. Pain in the ass to install? Not anymore thanks to its window frame adapter. Install it first and then slide the Noria AC in. No more balancing acts with your family both inside and outside with a pickup truck.You’d use a truck too over a ladder. That covers the installation. Now, the second biggest gripe. The company recognized the untapped market and unveiled a unit that is both sleek and stylish. At less than six inches tall, a Noria will not take up your entire window. Throw open the shade and enjoy a bit of sunlight. Keeping things simple is a control knob that is both intuitive and gets rid of the incessant button mashing of current window units. The low-profile engineering changed up how the team structured the fans.

Instead of blowing cold air directly out, the fans are directed upward to create convective cooling. A 5,000 BTU/hr unit can cool your average size bedroom with ease. Want to bring the outside indoors? On cool summer nights (the Noria team doesn’t live in the south), you can switch the compressor off, and the unit will pull in fresh air. Its onboard thermostat ensures the temp won’t dip too low for those that like to sleep warm. Below are the specs and performance numbers for the Nora window AC: Cooling Type: Vapor-compression refrigeration using environmentally and ozone-friendly R410a refrigerant Room size: Up to 160 square feet. Power Consumption: approximately 460-480 watts, for an EER we estimate to be 10.4 to 10.8. Size: 5.8”H x 18.25”W x 15”D Window Opening size: 21″ to 36″ wide. Window Type: Single or double-hung window frames The small footprint allows for easy storage outside the summer months. Slide it out of the window adapter and store it under a normal bed frame.